n=int(input())
a=input().split()
for i in range(len(a)):
    a[i]=int(a[i])

b=[0]*n
for i in range(len(b)):
    if a[i]%2==0:
        b[i]=2*a[i]
    elif a[i]%2!=0:
        b[i]=a[i]
print(*b,sep='\n')